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21 lines
485 B
TypeScript
21 lines
485 B
TypeScript
export const inBrowser = typeof window !== 'undefined';
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// Keep forward compatible
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// should be removed in next major version
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export const supportsPassive = true;
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export function raf(fn: FrameRequestCallback): number {
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return inBrowser ? requestAnimationFrame(fn) : -1;
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}
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export function cancelRaf(id: number) {
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if (inBrowser) {
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cancelAnimationFrame(id);
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}
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}
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// double raf for animation
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export function doubleRaf(fn: FrameRequestCallback): void {
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raf(() => raf(fn));
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}
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